Alisa External from Trails of Cold Steel is lying on her back. Sharon External is scissoring her. Alisa is having an orgasm and Sharon is smiling at her. Sharon has one hand on Alisa's cheek with the other grabbing Alisa's chest. Both of Alisa's hands are on Sharon's hips.

Alisa Reinford & Rean Schwarzer (Trails of Cold Steel)
Extracurricular Activities (Part 2): After their round of sweaty fun by the storehouse, Rean and Alisa go hit the showers...together.
As with part 1, use the CS1/2 character designs.
Both should be naked.
Note that Rean has a large scar on his chest: External
Alisa should probably not have her usual hair decorations, but can still have her hair tied up like in the above reference for Rean's scar.
Panel 1: Alisa is giving Rean a titjob. He's cumming all over her tits and face. She's smirking smugly at him, as if she's thinking, "I knew you couldn't hold out against me for long." External
Panel 2: Rean is eating out Alisa's dripping wet pussy as she moans in pleasure.
Panel 3: Alisa has her back pressed against the wall as Rean fucks her pussy. Rean is holding up one of Alisa's legs with one hand and cupping one of her breasts with the other. Alisa has her arms wrapped around Rean's neck. They've just shared a mutual orgasm, and cum is leaking out of Alisa's pussy. They're both smiling and gazing lovingly into each other's eyes.

Alisa Reinford and Rean Schwarzer (Trails of Cold Steel)
Rean and Alisa, both naked, are having sex in this position: External
An X-ray panel shows Rean cumming inside Alisa's pussy, and enough cum is flowing out of her and pooling on the bed to show that they've been at it for several rounds already.

Alisa Reinford & Rean Schwarzer (Trails of Cold Steel)
Extracurricular Activities (Part 1): After class, Rean and Alisa meet behind the academy storehouse to have some fun. External
This should be using the CS1/2 character designs, not CS3.
Rean is wearing his normal school uniform. External
Alisa is wearing her lacrosse uniform, minus the gloves. External Image
Other than what's described, they can lose clothes as necessary or convenient for what they're doing, but if you decide to draw Rean without his shirt, don't forget the scar on his chest: External
PM me if you need/want additional references.
Panel 1: Rean is standing behind/to the side of Alisa, kissing her. Her top and bra are pulled up, exposing her breasts. Her shorts and panties are pulled down, and she's holding up her skirt, exposing her pussy. Rean is fondling her breast with one hand and fingering her pussy with the other. Kind of like this: External
Panel 2: Alisa is giving Rean a blowjob. She's holding the shaft of his cock with one hand and fingering her dripping pussy with the other. Rean is gently stroking the top of Alisa's head with one hand, and he's cumming inside Alisa's mouth. Similar to these: External External
Panel 3: Rean is fucking Alisa doggystyle. He's leaning over her to kiss her while he fondles her tits and cums inside her overflowing pussy. Something like these: External External

Alisa Reinford & Rean Schwarzer (Trails of Cold Steel)
Extracurricular Activities (Part 3): That night, Alisa drops by Rean's room to spend a little more quality time with her lover.
As with parts 1 and 2, use the CS1/2 character designs.
Both should be naked.
Note that Rean has a large scar on his chest: External
Panel 1: Rean is sitting on his bed, and Alisa is riding his cock, facing him. He's groping her tits and sucking on one of her nipples.
Panel 2: Rean is lying on the bed now, and Alisa's still riding him in the cowgirl position. Rean's hands are on Alisa's hips, and Alisa's tits are bouncing up and down as she starts fucking him harder.
Panel 3: Alisa is lying on top of Rean now, kissing him passionately as they climax together. Rean is cumming inside Alisa's pussy, and cum is leaking out of her.

Trails of Cold Steel 3: Emma Millstein and Alisa Reinford looking towards the screen their bare breasts pressed against one another as they're both blushing. Something like this scene External (Only their tops are down/unzipped)

Trails of Cold Steel
Rean having his cock being ridden by Emma Millstein, Alisa Reinford sitting on his face while their breasts are pushed together and they kiss while Sara Valestein watches sitting on the classroom teachers desk fingering herself